Interesting. You don't want to get in a situation where several years from now you'll be getting nasty calls from a collection agency. Have you tried calling customer service? (+1-877-746-0909)  If you don't get an immediate response and resolution, I'd write them a letter, keeping a copy, and including a check for an over-estimate of what you owe them. They'll have to issue you a refund of the excess payment.

I tried calling the phone number and I am able to access my balance and do the robopay thing with no mention of a transaction fee (if they do charge the fee i'll be sure to turn it right in to the attorney general's office. had to do that with several various companies in the past pulling this same sort of scheme). Apparently I only had a <$1 balance, which is definitely not everything yet, considering I just ported the number yesterday, and from what I read, nothing is prorated. I'll try getting ahold of a person later today and see what happens. It'd definitely be nicer to just be able to check online for the final bill than have to call and sift through annoying voice menus every few days to check. I guess its going to be a necessary hassle in order for me to have a reliable signal. T-mobile is great in other paets of town here, but the entirety of south Phoenix basically has zero signal 75% of the time.

For future reference, it's always best to try to switch to paper billing before porting out.  Also, most carriers don't prorate the last bill when you port out or cancel service. So, if you port out on the first day of your service month you end up paying for the whole month.

Hey questwizard‌,

We are sorry to see you go! I have not tried Project Fi yet but I have heard good things As for your online access, this is removed when you cancel service with us as the number you use to login is no longer ours. Also, when you are on paperless billing and cancel your account, your final bill is always sent via paper to the billing address that we had on file. If you want to pay your bill before you receive this paper bill and you know approximately when your bill cycle closed, you can wait about 5 days after that date and your last bill will be finalized. You can still call customer care to find out what this final bill is and ask them to transfer you to the automated bill pay system if you would like.

I ported 2 of my 4 lines out yesterday, the current two lines are still active and will terminate on my billing cycle in approx 24 days time. However, I too can no longer access my accounts online. Even if I try and use the two current live numbers as a username, system says "

We're sorry, your online account access has been temporarily disabled. Please have the account holder contact customer care at 1-800-937-8997 to re-enable access.

I too ported out my 4 lines to AT&T for free iPhone 11s. Now I am unable to log into my T-mobile account. I have reset the password but it keeps asking me to link a T-mobile phone number to the account. This is useless since I no longer have any T-mobile lines active. I cannot get passed this. ugh! Seems like T-mobile is retaliating agains those who port out. Not cool! This makes me want to stay further away!

Verizon did the same thing to me.

Once ported the account is closed and your online access

is closed also.

This seems like it should be illegal. I just got a bill from T-mobile and notice of intent to draft an autopayment and I can’t review the last bill online. I’m surprised to see VZW would do this, as well. What are they thinking?

Hi, I ported my phone to Google and I am still being charged. What should I do?

Did you cancel service? If not call Tmobile to cancel. Just because you port doesn't mean service will be canceled.